The European eel is a species of eel. They are critically endangered due to overfishing by fisheries on coasts for human consumption and parasites.
European eel
Édouard Manet, 1864
Glass eels at the transition from ocean to fresh water
Mature silver-stage European eels migrate back to the ocean
Eels are ray-finned fish belonging to the order Anguilliformes, which consists of eight suborders, 20 families, 164 genera, and about 1000 species. Eels undergo considerable development from the early larval stage to the eventual adult stage and are usually predators.
Eel
The European conger is the heaviest of all eels.
Eel eggs hatch firstly into the leptocephalus larval stage.
Larval eels become glass eels as they transition from the ocean to fresh water.